E3 - Energy and Efficiency with Emily is a podcast dedicated to energy efficient home building in cold climate areas of New England. This week we welcome back our resident building science expert Mike Maines to discuss WRB’s (Weather Resistant Barriers, Water Resistant Barriers, Water Control Layer) whatever you want to call it. It’s one of the 4 critical control layers in a building, arguably one of the most important as our buildings DO NOT need to breath - but they do need to dry out. So we need to control how and when the water gets in and out of the shell. Which WRB to use isn’t a simple answer - “It Depends” so take a listen to the podcast and check out the show notes for links to some of the things we talked about.